Also protect active_qps decrement in the teardown flow.
Cc: <stable@xxxxxxxxxxxxxxx> # 3.10+
Signed-off-by: Sagi Grimberg <sagig@xxxxxxxxxxxx>
---
drivers/infiniband/ulp/isert/ib_isert.c | 10 +++++++++-
1 files changed, 9 insertions(+), 1 deletions(-)
diff --git a/drivers/infiniband/ulp/isert/ib_isert.c b/drivers/infiniband/ulp/isert/ib_isert.c
index 13dd729..1319e0d 100644
--- a/drivers/infiniband/ulp/isert/ib_isert.c
+++ b/drivers/infiniband/ulp/isert/ib_isert.c
@@ -143,12 +143,18 @@ isert_conn_setup_qp(struct isert_conn *isert_conn, struct rdma_cm_id *cma_id,
ret = rdma_create_qp(cma_id, isert_conn->conn_pd, &attr);
if (ret) {
pr_err("rdma_create_qp failed for cma_id %d\n", ret);
- return ret;
+ goto err;
}
isert_conn->conn_qp = cma_id->qp;
pr_debug("rdma_create_qp() returned success >>>>>>>>>>>>>>>>>>>>>>>>>.\n");
return 0;
+err:
+ mutex_lock(&device_list_mutex);
+ device->cq_active_qps[min_index]--;
+ mutex_unlock(&device_list_mutex);
+
+ return ret;
}
static void
@@ -744,7 +750,9 @@ isert_connect_release(struct isert_conn *isert_conn)
cq_index = ((struct isert_cq_desc *)
isert_conn->conn_qp->recv_cq->cq_context)->cq_index;
pr_debug("isert_connect_release: cq_index: %d\n", cq_index);
+ mutex_lock(&device_list_mutex);
isert_conn->conn_device->cq_active_qps[cq_index]--;
+ mutex_unlock(&device_list_mutex);
ib_destroy_qp(isert_conn->conn_qp);
}
--
1.7.1
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